package com.atguigu.lease.web.app.service.impl;


import com.atguigu.lease.common.constants.RedisConstant;
import com.atguigu.lease.common.jwt.JwtUtil;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.springmvc.LeaseException;
import com.atguigu.lease.model.entity.UserInfo;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.app.service.LoginService;
import com.atguigu.lease.web.app.service.UserInfoService;
import com.atguigu.lease.web.app.vo.user.LoginVo;
import com.atguigu.lease.web.app.vo.user.UserInfoVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.util.Random;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {

    @Autowired
    private RedisTemplate<String,Object> redisTemplate;
    @Autowired
    private UserInfoService userInfoService;
    @Override
    public void sendCode(String phone) {
        String key = RedisConstant.APP_LOGIN_PREFIX + phone;
        Boolean hasKey = redisTemplate.hasKey(key);

        if (hasKey) {
            Long expire = redisTemplate.getExpire(key, TimeUnit.SECONDS);
            Integer appLoginCodeTtlSec = RedisConstant.APP_LOGIN_CODE_TTL_SEC;
            Integer appLoginCodeResendTimeSec = RedisConstant.APP_LOGIN_CODE_RESEND_TIME_SEC;

            if (appLoginCodeTtlSec - expire < appLoginCodeResendTimeSec){
                throw new LeaseException(ResultCodeEnum.APP_SEND_SMS_TOO_OFTEN);
            }
        }

        StringBuilder sb = new StringBuilder();
        Random random = new Random();
        for (int i = 0; i < 6; i++) {
            sb.append(random.nextInt(10));
        }
        String code = sb.toString();
        System.out.println("验证码 = " + code);
        redisTemplate.opsForValue().set(key,code, RedisConstant.APP_LOGIN_CODE_TTL_SEC,TimeUnit.SECONDS);
    }

    @Override
    public String login(LoginVo loginVo) {
          String key = RedisConstant.APP_LOGIN_PREFIX + loginVo.getPhone();
          String code = (String) redisTemplate.opsForValue().get(key);
          if (code == null || !code.equals(loginVo.getCode())) {
              throw new LeaseException(ResultCodeEnum.APP_LOGIN_CODE_ERROR);
          }

          LambdaQueryWrapper<UserInfo> lambdaQueryWrapper = new LambdaQueryWrapper<>();
          lambdaQueryWrapper.eq(UserInfo::getPhone, loginVo.getPhone());
          UserInfo userInfo = userInfoService.getOne(lambdaQueryWrapper);

          if (userInfo == null) {

              userInfo = new UserInfo();
              userInfo.setPhone(loginVo.getPhone());
              userInfo.setAvatarUrl("http://www.baidu.com/img/bd_logo.png");

              userInfo.setNickname("佚名" + loginVo.getPhone().substring(7));
              userInfo.setStatus(BaseStatus.ENABLE);
              userInfoService.save(userInfo);
          }

          if (userInfo.getStatus() == BaseStatus.DISABLE){
              throw new LeaseException(ResultCodeEnum.APP_ACCOUNT_DISABLED_ERROR);
          }

        String token = JwtUtil.createToken(userInfo.getId(),userInfo.getPhone());
        return token;
    }

    @Override
    public UserInfoVo info(String accessToken) {
        Integer userId  = (Integer) JwtUtil.parseToken(accessToken).get("userId");
        UserInfo userInfo = userInfoService.getById(userId);
        UserInfoVo userInfoVo = new UserInfoVo(userInfo.getNickname(),userInfo.getAvatarUrl());
        return userInfoVo;
    }
}
